00470nam a22001697a 4500003000400000008004100004020001800045082001600063100002300079245005100102250001200153260004600165300001000211650002000221650003300241650002600274OSt220407b        |||||||| |||| 00| 0 eng d  a9789382998150  a363.7bS61P  aSingh, Dharmendra.  aParyavaraniy Samasyaem / cby Dharmendra Singh  a1st ed.  a.- New Delhib: Shivank Prakashanc, 2020  a248p.  aSocial Sciences  aSocial Problems and Services  aEnvironmental Science